peters



`this specification, in which--` iltiteri tzttet f stent chillin,

JQ`HN-YH. (Q'OB'URN, 0F LOWELL, MASSACHUSETTS.

To all 'whonm't my concern Be it known tliatI, J oi-IN H.GoBURN, ofLowell, inthe county of Middlesex, and State of Massachusetts, haveinvented certain new and useful Improvements in Shuttles for Looms, ofwhich the following is a full, clear, and exact description, referencebeing had to the accompanying drawings, making part of Figures l and 2arccentral longitudinal.sections, the former with a illing-hobbin, (asemployed,) on the spindle, andthe latter without it.

Figure Sais a similar section, with the spindle in position to receivethc bobbiu.

Figures 4 and 5 are detached spindles, with the springs andholding-prcections ,clearly shown.

This invention and improvement in shuttles relates to the spindle whichholds and lcarries the filling-bob'- b,in, and hasfor its objecttofacilitate the removal of empty bobbins, and the replacing of full ones,without unnecessary wear and injury to the bohhingto hold the bobbinfirmly on the spindle, and always in the saiiie'line of action, orparallel with the longitudinal central line of the shuttle, and toprevent the possibility ofthe bobbiu being accidentally released ordisengaged froru the spindle, while the shuttle is in use, or whileready for usc.

In constructing and applying my said improvement, the top side of thelspindle A is flattened, from the shoulder a, t0-near the end lb thereof,and the spring elv is fitted and fastened to the flattened side. of thespindle.

This spring (l is so formed that the end e is raised from the fiat-tenedsurface by its owil rigidity, and requires considerable pressure. toforce it down and hold it while the bobbin is placed upon the spindle.

rlhe pressing down of the free end of the spring is performed by theendf of the'top plate or top spring, as shown in iig. 3, where thespindle is raised or turned upward to receive the bobbin. Here it willbe seen, that when the spindle is turned upward or outward, the l'i'eeend of the spring d comes in contact with the under sido of the cud ofthe top plate or top spring, which acts upon the pivoted head ofthepspindle, and presses the spring (l downward on to the ilattenedsurface of the spindle, and allows the'bobbin to slide freely on tothe-same.

.Pushing ou the free end of the spindle moves or `turns it downward(with the bobbn i upon it) into the shuttle, which operation releasesthe end of the spring d from contact with the end of thc top plate, andalto hold the bobbiu on to the spindle, under all circunf- (latedDecember 14, 1869.

lows the end of thespring d to rise and bind the hoi bin on to thespindle.

This binding action of the spring d is not sufticient stances, andtherefore l form a holdng-prdjectton, e, either on the top side of the'vspring 1Z,..as shown iniig. 4, or inthe free end of the spindle, asshown in iig. 5. In the former case, the projection@ on the spring,rises into an annular groove, g, formed within the bobbin, and holds iton tothe spindle, and in the latter case, the projection e, on the freeend of the spindle, engages with or hooks on to the end of the bobbin,being forced into that holdingLposition by the action of the spring d,which raises the rear end of the bohbin, and forces the forward end downon the top of the free end of the spindle, and back of the projection c,which fully en' ages with the end ot' the bohbin.

In either case, the springr d holds the bobbin steady on the spindle,and in the line ot' action 'of the shut tle, and prevents it rotating onthe spindle, when the fillingrnns cti, while the projection `r: retainsthe bohbin on the spindle, against any action of the shuttle, andprevents the possibility of the hobbin being rcleased, or becomingdisengaged from the spindle, unless at the will and by'the action of theoperator, who may raise or tur'n the spindle and the bobbin upward,which brings the free end ot' the spring (l in contact with the underlside of the end f of the top plate, which presses the spring l on tothe Iiattened surface of the spindle, as shown iu tig. 3, when thehobbin may be removed, and another bobbin replaced on the spindle, withease and convenience.

My improvements can be readily applied to almost any kind of shuttle,without the least change oraltcratiou in the construction of theshuttle, or in the construction or application of any of the partsthereof'.

Any other device may be arranged to compress the end of the spring d,but the end of the top plate is a convenient device for that purpose,and avoids thc necessity of adding other parts to the shuttle.

What I claim as my invention, and desire to sccure by Letters latent ofthe United States, is-

rlhe spindle A, provided with the spring {1,constructed substantially asdescribed, and with thc holding-projection c, whether on thc'spriug d,or on the end of the spindle A, for the purposes set forth.

Witnesses: JOHN li. COBIl'ltN J, W. REED, v I. S. Pomme.

